The statement above is FALSE.
Homonyms refers to two or more words which have the same spelling, the same sound but different meaning. The three words given above, that is, Mary, Marry and Merry do not have the same spelling and sound, therefore, they are not homonyms.
The answer is option a A: types of publications
A print is a produce in large quantities, wether be it books, newspapers, magazines, etc.
An academic publication can be a journal, article, book or thesis on a particular subject of study.
A research publication can be newspaper article that touches on an specific subject that the writer has been working on for a period of time.
Hope this helps
Im sorry im not really good with part of speech xD